Boat



Dec. 9, 1930. F M` NQRMAN 1,784,071

BOAT

Filed Feb. 8, 1929 5 Sheets-Sheet l l H w if' g u 22 :l l l On I Ir Vxx Inventor j M /Vornza/w q Bynu l Atorney Dec. 9, 1930.

F. M. NORMAN BOAT Filed' Feb. 8. 1929 s sheetsshet 2 N M ,fx XN Inventor TM/wwwa@ A trney Deu. 9, 1930. F. M. NORMAN BOAT Filed Feb. 8, 1929 3 Sheets-Sheet 5 Patented Dec. 9, 1930 PA'rlarVll OFFICE,

FRANK M. NomN, or GALENA, ILLrNo'is BOAT Application fue@ February s, was. serial No. 338,447.

This invention appertains to Water crafts and more particularly to outboard motor boats of the speed hydroplane type.

Une of the important objects of this invention is to provide a speed boat with novel means for introducing an air stream under the hull thereof, so as to facilitate the travel of the boat over the water and to prevent pounding ofthe boat incident to travel over rough water. l

Another ob] ect of t-he invention is the provision of novel means of constructing the hull of the boat to facilitate the lifting and planing thereof and of means for introducing an air stream in rear of the bow of the boat for facilitating the further lifting and planing thereof in the water. l

A further object of the invention is the p rovision of novel means for constructing a ydroplane so as to insure proper travel thereof over the water and to permit perfect -control to be had thereover.

A still further object of the invention is to provide an improved boat of the above character which will be durable, efficient in use,

one that will be simple and easy to manufacture, and one which can be placed upon the market at a comparatively low cost.

lVith these and other objects in view, the

invention consists in the novel construction,

arrangement, and formation of parts, as will be hereinafter more s eciically described, claimed, and illustrat in the accompanying drawings, in which l Figure 1 is a top plan view of the improved boat.

Figure 2 is a side elevation of the same.

Figure 3 is a longitudinal section through t-he boat taken on the line 3 3 of Figure 1.

Figure 4 is a transverse section through the boat taken on the line 4-4 of Figure 2 illustrating the novel means for confining the air stream under the hull of the boat.

Figure 5 is a transverse section through the forward end of the boat taken substantially on line 5 5 of Figure 1 illustrating the air tubes.

` Figure 6 is an enlarged fragmentary section, with parts in side elevation illustrating constructed. in accordance with my invention v lwhich vincludes a novel form of hull and novel means 25 for introducing a wind stream under the hull.

The hull 10 includes a front wedge shaped bow block or plug 11 which can be formed of oak, and a plurality of equidistantly spaced ribs 12 which form in connection with the plug the frame work for the hull. As shown the ribs'12'include sidepieces 13 and bottom pieces 14 which can be suitably connected together. The ribs at the forward end also support top cross pieces 15 for the front decking 16, which can be made of spruce.

The bottom wall or skin 17 at the front or bow of the boat is secured to the bow block 11 and inclined rearwardly and downwardly therefrom to a point short of the transverse center of the hull, at which point the lower cross ribs are raised for the reception'of the flat lower wall or skin 18 which is stepped `above the rear end of the lower wall 17. The forward end of the decking 16 is secured to the top face of the bow block 11, and inclined upwardly and rearwardly therefrom and has its sides gradually sloping downward from the longitudinal center thereof. The construction ofthe bow of the boat with the deck and bottom wall 17 forms a bulletlike Haring bow which creates a wind breakerto facilitate the lifting of the bow of the boat from the water.

The sidevv ribs 13 have secured thereto in any-desired way the side walls 19 of the boat which extend substantially the full length thereof from the bow block 11 to the stern plate or rear wall 20. This wall carries the rearwardly extending pontoons 21 which have their top faces angled downwardly as at 22 and these pontoons arespaced from one another and arranged from opposite sides of the. longitudinal center of theboat to provide a wel] 23y for the reception of the outboard bja m motor which carries the usual rudder and propeller screw.

The lower walls of the pontoons 21 are stepped above the lower wall 18 of the hull and can carry depending fins 24 to facilitate steering or control of the boat.

Referring to the novel means 25 for introducing the air stream under the hull of the boat in rear of the wall 17, the same includes rearwardly extending twin air conveyor pipes 26 which have their forward ends preferably arranged under the deck 16 and leading toward the deck on opposite sides of the longitudinal center thereof. The rear ends of the pipes 26 are provided with elbows 27 which extend downwardly through the wall 1S and the elbows are preferably received in suitable supporting cups 28 which can be confined between a pair of the lower cross pieces or ribs 14. Forward upper ends of the `Apipes 26 are likewise received in elbows 29 which open out through the decl; 16, and the elbows support wind or air deflectors 30 for guiding the air into elbows 29 and consequently into pipes 26. A wind or air defiector 30 can be received within suitable stream line canopies 31 which also add to the appearance of a boat as well as to means for collecting the air and guiding the same toward the deflectors 30.

In order to insure the correct passage of the air stream under the hull of the boat the lower wall 18 has secured thereto adjacent the opposite sides thereof longitudinally extending strips 32 which define an air channel or passage way under the boat.

Thus it can be seen that during the travel of a boat over the water air will be collected by the canopy 31 then it enters into the pipe 26. The passage of the boat through the water also creates a draft or suction through the pipes 26 which also tend to draw the air stream under the water and into the channel defined by the heels 32. Thus an air stream is introduced under the boat directly in rear of the forwardly inclined wall 17, and the stream is confined under the hull of the boat until the same makes its exit from the stern thereof under the pontoons 21.

From the foregoing description it can be seen that means has been provided for not only lifting the bow of the boat from the water due to its bullet-like bow construction7 but that means has been further provided to lift the hull of the boat to further enhance its planing power by introducing an air stream substantially under the boat at the transverse center thereof. The air stream also prevents pounding of the boat as now experienced by hydroplanes during travel over rough water. The construction is also suchras to permit easy control of the boat to be had. f y

The boat can be constructed from any desired material such as sheet metal, but asy heretofore stated it is preferred to construct the decking from spruce. Any preferred type of floor board can be used in the boat such as the boards 33 which rest upon the bottom ribs 14.

The strips 32 not only act as means for confining the air under the hull of the boat but also act as a protection in short curves and in backing. If preferred means can be provided for controlling the draft through the pipes 26 in which case manually operated butterfiy valves can be arranged in said pipes.

vChanges in details may be made without departing from the spirit or scope of the invention7 but what I claim as new is A boat comprising a hull including a longitudinally disposed wedge-shaped bow having a flat downwardly inclined bottom wall, a main flat bottom wall stepped above and merging with the inclined bottom wall of the bow atk a point forwardly of the transverse median of the hull, said main bottom wall terminating at its rear end in an upstanding stern wall, a pair of pontoons carried by the stern wall stepped above the main bottom wall and disposed in spaced relation to each other on the opposite sides of the aXis of the hull to form a pocket for an outboard motor, fins depending from the pontoons, longitue dinally extending spaced strips carried by the main bottom wall and co-extensive therewith to form an air channel in conjunction with the main bottom wall, conductors eX- tending through the hull having their inner terminals in said channel, a transversely curved rearwardly inclined top deck over a portion of the hull merging at its forward end with the bow, canopies secured to the top deck and rising therefrom, the outer ends of the conductors terminating in said canopies.

In testimony whereof I afhx mv signature.

FRANK M. NORMAN. 

